Water balance with hydrated minerals

The HP1 code incorporates modules simulating
(1) transient water flow in variably-saturated media,
(2) transport of multiple components, and
(3) mixed equilibrium/kinetic geochemical reactions.
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matthewsilver
Posts: 2
Joined: Mon Aug 13, 2018 3:56 pm
Location: Germany

Water balance with hydrated minerals

Post by matthewsilver » Mon Aug 13, 2018 4:14 pm

Dear Jirka, admins and HP1 users,

I am modeling a system with an atmospheric boundary and water flow into a layer of Na2SO4, which can be hydrated to Na2SO4*10H2O (this process and the reverse are simulated with the PhreeqC database I am using). Does HP1 account for the water consumed (by mineral hydration) or released (by mineral dehydration) in the physical flow system (i.e. is the quantity of water in the physical model coupled with the geochemical calculations in PhreeqC)? From what I can tell, the answer is no. If this is correct, any suggestions for how the water balance from mineral hydration and dehydration could be coupled with Hydrus?

Best regards,
Matthew

diederik
Posts: 78
Joined: Fri Mar 10, 2006 7:57 am
Location: Belgium

Re: Water balance with hydrated minerals

Post by diederik » Thu Jan 03, 2019 3:24 pm

Dear,

you are correct, water consumed by mineralogical reactions are not accounted for in the distributed version of HPx. However, everything is implemented in a beta version, but it needs to be benchmarked. I will inform you when this is done,

Diederik

matthewsilver
Posts: 2
Joined: Mon Aug 13, 2018 3:56 pm
Location: Germany

Re: Water balance with hydrated minerals

Post by matthewsilver » Thu Jan 03, 2019 3:39 pm

Dear Diederik,

Glad to hear a version accounting for water in mineralogical reactions is in development. I would indeed appreciate hearing when it is released.

Best regards,
Matthew

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